This topic contains 1 reply, has 2 voices, and was last updated by 
Jeffrey Voight 2 years, 4 months ago.
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Topic
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My uncles’s 2009 Honda CRV has an air conditioner that doesn’t work most of the times. He took it to a mechanic that replaced the compressor. I really don’t think it’s the compressor.
I’m not a mechanic, but shouldn’t the radiator fan turn on when the air conditioner is on? The radiator fan will not turn on when I turn on the air conditioner.
The radiator fan does work as I saw it turn on on a warm day when it was sitting for a while and then turned off after a minute. So I’m pretty sure the radiator fan is fine. I’m pretty sure my problem lies with a bad relay or controller or something. Is there a relay between the air conditioner and radiator fan?
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There are 2 cooling fans on this. One is switched to the temperature and the other is switched to the AC. The AC fan should turn on Everytime the AC is turned on. I believe this fan is on the passenger side. Your engine fan seems to be working properly. The AC fan switch needs to have a signal confirming there is pressure from the AC system. I suspect you either don’t have the proper pressure in the system or the pressure switch is faulty. First check the fuses.Check the No. 1 (20 A ) and No. 4 (20 A ) fuses in the under-hood fuse/relay box, and the No. 14 (10 A ) fuse in the under-dash fuse/relay box.
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